Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quais são os Pontos após 1991?
 ###Tabelas: CREATE TABLE public_and_established_private_institutions (public_and_established_private_institutions_id AUTO_INCREMENT PRIMARY KEY, School VARCHAR, Location(s) VARCHAR, Control VARCHAR, Type VARCHAR, Accreditation VARCHAR, Founded INT, Enrollment VARCHAR) CREATE TABLE ohio (ohio_id AUTO_INCREMENT PRIMARY KEY, District VARCHAR, Incumbent VARCHAR, Party VARCHAR, First elected INT, Result VARCHAR, Candidates VARCHAR) CREATE TABLE grand_prix_career_statistics (grand_prix_career_statistics_id AUTO_INCREMENT PRIMARY KEY, Year INT, Class VARCHAR, Team VARCHAR, Machine VARCHAR, Points INT, Wins INT) CREATE TABLE winners_by_club (winners_by_club_id AUTO_INCREMENT PRIMARY KEY, Clubs VARCHAR, Winners INT, Runners-up INT, Total finals INT, Winnig years VARCHAR) CREATE TABLE political_parties (political_parties_id AUTO_INCREMENT PRIMARY KEY, Name (English) VARCHAR, Name (German) VARCHAR, Abbr. VARCHAR, Ideology VARCHAR, Position VARCHAR, Votes (2011) VARCHAR, Seats in Hamburgische Bürgerschaft INT)  
SELECT COUNT Points FROM grand_prix_career_statistics WHERE Year > 1991